Sash-weight-core-forming device



June 9, 1925. 1,541,614

l w. M. BARNARD SASH WEIGHT CORE FORMING DEVICE Filed Apr-11 14. 19.22 2sheets-sheet '1 /f F1 El l 23 a o 'l l /go l? ,'5 @le A Qa IH* 2| INVE NT n n W`I"LEABNARD l ww/JIM lJune 9, 1925. A 1,541,614

w. M BARNARD sAsH WEIGHT com:v mamma DEVICE Filed April 14. 1922 2sheets-sneu 2 Filzi-f INVE'NTD n WMIL EIARNARQ ATT uhm-av Patented June9, 1925.

STAT-ES WILLIAM MBARNARD, or sPaINGrrELD, MAssacHUsErTs.

`s.asH-wmcfnrconerolamme DEVICE.

application mea Api-i1 14, 1922. serial No. 552,575'.

To all 'whom t 'may concern.' n

vBe i-t known that WILLIAM M. BARNARD, a rcitizen ofthe United States ofAmerica, residing at Springfield, in the county of Hampden and VState ofMassachusetts, has invented certainv new and useful Improvements inSashelVeight-CoreeForming Devices, of which the following is aspecification.

This invention relates to improvements in devices for making cores foruse in casting sash weights and its leading object is to provide adevice of extreme simplicity which will enable the worker to make alarge number vof cores and will imprint the weight number on the core,to leave such imprint on the cast sash weight near the eye thereof.

lith the above and other objects in view the invention consists incertain new and useful constructions, combinations and arrangements ofparts, clearly described in the following specification and fullyillustrated in the accompanying drawings, in which Fig. 1 is a verticalsectional viewthrough a core box, showing the device in side elevation.i

Fig. 2 is an end view of the device.

Fig. 3 is a transverse sectional view thereof.

Fig. 4 is a plan view of a modified form.

Fig. 5 is a transverse sectional view thereof, taken on line A of Fig.4.

Referring to the accompanying drawings illustrating the practicalapplication of the invention 5 designates a core box, which include thebase 6, the cylindrical wall 7 and the tapered stem 8, which is designedto have a non-rotative fit in the socket or hole of the table or workbench, not shown.

The opposing sides 7 and 7b of the wall 7 are formed with openings 7aand 7b', which are disposed in registration. The upper and inner face ofthe base 6 is formed with a taper so as to shape the end of the coreaccordingly. The upper end of the core box is normally open to admit byhand lilling the sand to be used. A device 11 is adapted to be extendedthrough the openings 7a and 7h', and this device consists of a pair ofcompanion jaws 12 and 13. The lower jaw member 13 is formed with alongitudinal trough 13 and a handle 14 extending therefrom, which isformed with a terminal eye 15. The upper jaw member l2 is formed with alongitutol receive the jaw 12, and ori 'the' upper face of the centralwall ofthe jaw member 12 l dinal troughoi pocket 12. which is adaptedalso formed witha terminal lip 17 en' its forward end and a terminal eye1-8 on its rear end, which is pivotalljT connected to the eye 15 bymeans of the piutle 19. The eye 18 is formed on the handle extension 20of the upper jaw 12. A stop 21 is formed on the lower jaw eye which isadapted to be engaged by the shoulder 22 formed on the eye of the upperjaw member. A stop 23 is also formed on one of the members 13 to limitthe insertion of the device in the core box, so that the character willcome in a central or axial position therein.

The upper jaw is automatically elevated on the lower jaw by means of aspring 24. which is enclosed in the chamberprovided by the trough of thelower jaw and the pocket of the upper jaw, the spring being anchored atits upper end to the eye 24a formed on the jaw 13 and bearing at itslower end against the jaw 12.

The device is inserted in the core box, with the upper jaw depressed byhand pressure, so that the character will not strike against the wall ofthe core box. When the device is fully inserted the pressure iswithdrawn and the jaws will be forced apart, so that the upper jaw willbe forced into forming position. The core box is then filled with sandand afterthis is packed into place by slight hand pressure, which isinsufficient to close the jaws on cach other, the upper jaw is forceddownwardly, so that the character is withdrawn from contact with thesand, and theV device is then withdrawn from the core box.

In Figs. 4 and 5 I show a device for use in connection with two coreboxes. This device includes the `upper jaw members and 31 which arepivoted to the low jaw members 30a and 31a as in the construction shownin Fig. 1. The lower jaw members are connected to each other by integraland rigid bars 32 and 33. The bar 33 carries the bearing lugs 34 and 35,andthe lever 38 is pivoted by its shaft 36 on these lugs. This levercarries on its lower end a cam 37, which is designed to work against thecross rod 38a, the ends of Which engage the Spring pressed upper jaws3.() and 3l. By swinging the lever the two upper jaws will besimultaneously depressed, andthe foie ward ends of the'v two 'foi'merscan be inserted'in the coreiboxes 5, and Withdrawn.

I claim l. A sash Weight core forming device consisting of pair ofmembers, one having a longitudinal channel, one of the members havingsliding engagement With said channel, a spring carried and disposed insaid ylongitudinal channel and bearing against the other member tendingto separate. said members, each member being providedA With longitudinalhandle, the rear ends of the handles being pivotally connected to eachother, one `of saidineml'iers having a character thereon or imprintingthe sand from which the sash is molded, the Vtivo members being soarranged that upon manual pressure of one end upon anyportion of thehandles the character will be moved inwardlj7 to the sand and tbe devicemay be` slidably Withdrawn.

A pair of weight forming devices, each including relatively movable jawsone of which carries a character, means connecting the devices in spacedrelation, a cross bar bearing on certain of the jaws for moving the sameagainst the opposite jaws, and a lever for moving the cross bar to Closethe jaws. y Y i Signed by me aty Springfield, Mass.

ILLIAM MV BARNARD.

